Player to watch: DeForest Buckner. When you think of Oregon's tall, disruptive lineman, thoughts naturally start with Arik Armstead. But when a wrist injury limited him last season, the 6-foot-7 Buckner stepped out of the shadow of his classmate for 39 tackles thanks to a physical style. His motor and physicality isn't an issue; if he can improve his footwork and use of his hands, he could be the heart of the line.

Analysis: With long arms, two seasons of experience and height that ranges between 6-4 and 6-8, Buckner, Armstead and Alex Balducci should move into the void left by the outgoing senior trio with little issue. But answering the central question that nagged last seasons' defense -- can Oregon stop a big, physical running game? -- is an issue that goes beyond the three juniors and makes finding depth so crucial this spring.